김주혁 - vlogue

김주혁

Spring Boot, Redisson 분산 락(Distributed Lock)

Synchronizer Control with Spring Redisson Distributed Lock

Jan 08, 2025

Etc.Java & Spring BootSystem/NetworkDBRedis

ANTLR Tool version … used for code generation does not match the current runtime version …

Version mismatch between Hibernate and Spring Data JPA (EX : Cannot invoke "org.antlr.v4.runtime.ParserRuleContext.getParent()" because "ctx" is null)

Jan 07, 2025

Java & Spring BootErrorJava & JPA & Hibernate

Spring boot, JPA (3) - 1차 캐시

1차 캐시와 2차 캐시 등, JPA Cache 사용법

Dec 03, 2024

Java & Spring BootDBJava & JPA & Hibernate

Spring boot, JPA (2) - 영속성 컨텍스트(Persistence Context)

JPA 영속성 컨텍스트 요약

Dec 03, 2024

Java & Spring BootDBJava & JPA & Hibernate

Spring boot, JPA (1) - Entity Manager란?

Spring boot JPA Entity Manager

Dec 03, 2024

Java & Spring BootDBJava & JPA & Hibernate

MySQL, 효과적인 Index 설정방법

the concept of indexes and effective MySQL indexing strategies

Nov 18, 2024

System/NetworkDB

MySQL, 효과적인 InnoDB 사용방법

Best Practices for InnoDB Tables

Nov 18, 2024

System/NetworkDB

ISMS-P 란?

Information Security Management System

Nov 15, 2024

Etc.System/NetworkSecurity

ISO 27001 이란?

Nov 15, 2024

Etc.System/NetworkSecurity

SQL 드라이빙 테이블이란?

쿼리 조인 및 실행 계획

Nov 15, 2024

Etc.System/NetworkDB

GS(Good Software) 인증 이란?

Nov 15, 2024

Etc.Security

CSAP(Cloud Security Assurance Program) 이란?

한국인터넷진흥원(KISA)에서 주관하는 클라우드 서비스 보안 인증 제도

Nov 15, 2024

Etc.System/NetworkSecurity

SOC2 란?

System and Organization Controls

Nov 15, 2024

Etc.Security

Java & Spring boot, Thread Safety 하지 않은 Singleton 객체(JSONParser)

Spring boot에서 com.googlecode.json-simple:json-simple 라이브러리를 사용할 때 싱글톤으로 만들면 안되는 이유

Nov 01, 2024

Java & Spring BootSystem/NetworkError

brew install vault-radar, Error: Your Command Line Tools are too outdated.

Oct 28, 2024

Etc.System/NetworkError

Docker 로그 파일 관리로 해결하는 EC2 스토리지 부족 문제(logrotate)

Resolving EC2 Storage Shortage Issues Through Docker Log File Management (logrotate)

Oct 22, 2024

Etc.System/NetworkErrorDocker

Spring boot, JPA could not initialize proxy - no Session

closing the session or not keeping the session open to fetch the LAZY loaded objects.

Sep 24, 2024

Etc.Java & Spring BootSystem/NetworkErrorDBJava & JPA & Hibernate

AWS Kinesis - Firehose Introduce (2)

Partition streaming data & Convert input data format & etc …

Sep 23, 2024

AWSEtc.System/Network

AWS Kinesis - Firehose Introduce (1)

Introduce & Tutorial : Stream Create & Transform source data

Sep 23, 2024

AWSEtc.System/Network

AWS Kinesis - Kinesis Data Stream Introduce

Understanding Kinesis Data Stream

Sep 09, 2024

AWSEtc.System/Network

Kubernetes-Masterclass | Fargate & NLB & ECR

Sep 09, 2024

AWSEtc.System/NetworkLecture

Pricing Comparison of ElastiCache Serverless

Is ElastiCache Serverless Actually More Cost-Effective When Implemented? (ElastiCache Serverless Pricing)

Sep 06, 2024

AWSEtc.System/NetworkDB

Spring boot, Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'xxxxController' method

RequestMapping Duplicated ERROR

Aug 30, 2024

Java & Spring BootError

RDS SSL 인증서 만료, Caused by: java.security.cert.CertificateExpiredException : NotAfter

rds certificate expired

Aug 23, 2024

AWSJava & Spring BootErrorDB

Spring Boot, Which one should i use @Transactional ?

Which one should you use: @javax.transaction.Transactional or @org.springframework.transaction.Transactional?

Aug 20, 2024

Java & Spring BootDBJava & JPA & Hibernate

Kubernetes-Masterclass | LBC, Ingress & Service Account(SA) & Webhook Service & Ingress Class

Aug 20, 2024

AWSSystem/NetworkLecture

Kubernetes-Masterclass | Load Balancer & Private Node Group

Load Balancer(ALB, CLB, NBL) & Private Node Group

Aug 20, 2024

AWSSystem/NetworkLecture

MyBatis에서 AUTO INCREMENT 값 가져오기

How to Retrieve the Inserted ID in MyBatis

Aug 19, 2024

Java & Spring BootDB

Clean Architecture 개념과 의존성 역전 원칙(DIP)

How does Clean Architecture follow to the DIP (Dependency Inversion Principle) ?

Aug 18, 2024

Etc.Java & Spring BootSystem/Network

Kubernetes-Masterclass | Application Deploy Concept & AWS RDS

application deploy 개념과 aws rds 사용

Aug 11, 2024

AWSSystem/NetworkDBLecture

Kubernetes-Masterclass | YAML , EBS

YAML & EBS

Aug 05, 2024

AWSSystem/NetworkLecture

JAVA, Error : java.lang.StackOverflowError

재귀호출로 발생하는 무한루프

Aug 05, 2024

Java & Spring BootSystem/NetworkError

Kubernetes-Masterclass | Kubernetes, Pod, ReplicaSet, Deployment

EKS Master Class Week 1

Jul 29, 2024

AWSSystem/NetworkLecture

Spring boot, Exiting but response remains open for further handling

Servlet Async 비동기 통신의 무한 pending이 걸렸을 때는 타임아웃을 걸어주자

Jul 25, 2024

Java & Spring BootSystem/NetworkError

Hibernate error, org.hibernate.query.SemanticException: The assignment expression type

Hibernate

Jul 24, 2024

Java & Spring BootErrorDB

$SQL ERROR 1366 (HY000): Incorrect string value: '\xEC\x9D\xB4\xEB\xAF\xB8...'$

SQL ERROR 1366 (HY000): Incorrect string value: '\xEC\x9D\xB4\xEB\xAF\xB8...'

Jul 12, 2024

Spring Boot 3, Hibernate JPA Debug : Encountered deprecated setting [javax.persistence.sharedCache.mode], use [jakarta.persistence.sharedCache.mode] instead

jpa cahce 설정 관련 debugging

Jul 05, 2024

Java & Spring BootErrorDBJava & JPA & Hibernate

Spring boot 3, AWS Redshift + JPA + Tsid

Spring boot에서 jpa로 redshift를 쓰고 싶다면..

Jul 04, 2024

AWSJava & Spring BootDB

Unexpected update count received (Actual: 0 Expected: 1). All changes will be rolled back.

GUI 동작의 쿼리 실패는 왜 발생하는가

Jun 26, 2024

Etc.DB

Spring boot 3 Migration MySQL ⇒ MariaDB

MySQL에서 MariaDB 로

Jun 26, 2024

Java & Spring BootDBJava & JPA & Hibernate

Spring boot Execution failed for task ':compileQuerydsl'. + Mac

Jun 07, 2024

Java & Spring BootErrorJava & JPA & Hibernate

Spring boot Composite-id class does not override equals()

Jun 06, 2024

Java & Spring BootError

Spring boot 3, Hibernate ERROR Caused by: java.lang.ClassNotFoundException: Could not load requested class

Jun 06, 2024

Java & Spring BootError

Spring 3.0 Unable to resolve name

[org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy] as strategy [org.hibernate.boot.model.naming.PhysicalNamingStrategy]

Jun 06, 2024

Java & Spring BootError

Java의 정석(3) - 연산자(operator)

May 30, 2024

BookJava & Spring Boot

가상면접 사례로 배우는 대규모 시스템 설계 기초(15) - 구글 드라이브 설계

15장 구글 드라이브 설계

Apr 28, 2024

Etc.BookSystem/Network

가상면접 사례로 배우는 대규모 시스템 설계 기초(14) - 유튜브 설계

14장 유튜브 설계

Apr 20, 2024

Etc.BookSystem/Network

가상면접 사례로 배우는 대규모 시스템 설계 기초(13) - 검색어 자동완성 시스템

13장 검색어 자동완성 시스템

Apr 20, 2024

Etc.BookSystem/Network

vlogue

Spring Boot, Redisson 분산 락(Distributed Lock)

ANTLR Tool version … used for code generation does not match the current runtime version …

Spring boot, JPA (3) - 1차 캐시

Spring boot, JPA (2) - 영속성 컨텍스트(Persistence Context)

Spring boot, JPA (1) - Entity Manager란?

MySQL, 효과적인 Index 설정방법

MySQL, 효과적인 InnoDB 사용방법

ISMS-P 란?

ISO 27001 이란?

SQL 드라이빙 테이블이란?

GS(Good Software) 인증 이란?

CSAP(Cloud Security Assurance Program) 이란?

SOC2 란?

Java & Spring boot, Thread Safety 하지 않은 Singleton 객체(JSONParser)

brew install vault-radar, Error: Your Command Line Tools are too outdated.

Docker 로그 파일 관리로 해결하는 EC2 스토리지 부족 문제(logrotate)

Spring boot, JPA could not initialize proxy - no Session

AWS Kinesis - Firehose Introduce (2)

AWS Kinesis - Firehose Introduce (1)

AWS Kinesis - Kinesis Data Stream Introduce

Kubernetes-Masterclass | Fargate & NLB & ECR

Pricing Comparison of ElastiCache Serverless

Spring boot, Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'xxxxController' method

RDS SSL 인증서 만료, Caused by: java.security.cert.CertificateExpiredException : NotAfter

Spring Boot, Which one should i use @Transactional ?

Kubernetes-Masterclass | LBC, Ingress & Service Account(SA) & Webhook Service & Ingress Class

Kubernetes-Masterclass | Load Balancer & Private Node Group

MyBatis에서 AUTO INCREMENT 값 가져오기

Clean Architecture 개념과 의존성 역전 원칙(DIP)

Kubernetes-Masterclass | Application Deploy Concept & AWS RDS

Kubernetes-Masterclass | YAML , EBS

JAVA, Error : java.lang.StackOverflowError

Kubernetes-Masterclass | Kubernetes, Pod, ReplicaSet, Deployment

Spring boot, Exiting but response remains open for further handling

Hibernate error, org.hibernate.query.SemanticException: The assignment expression type

SQL ERROR 1366 (HY000): Incorrect string value: '\xEC\x9D\xB4\xEB\xAF\xB8...'

Spring Boot 3, Hibernate JPA Debug : Encountered deprecated setting [javax.persistence.sharedCache.mode], use [jakarta.persistence.sharedCache.mode] instead

Spring boot 3, AWS Redshift + JPA + Tsid

Unexpected update count received (Actual: 0 Expected: 1). All changes will be rolled back.

Spring boot 3 Migration MySQL ⇒ MariaDB

Spring boot Execution failed for task ':compileQuerydsl'. + Mac

Spring boot Composite-id class does not override equals()

Spring boot 3, Hibernate ERROR Caused by: java.lang.ClassNotFoundException: Could not load requested class

Spring 3.0 Unable to resolve name

Java의 정석(3) - 연산자(operator)

가상면접 사례로 배우는 대규모 시스템 설계 기초(15) - 구글 드라이브 설계

가상면접 사례로 배우는 대규모 시스템 설계 기초(14) - 유튜브 설계

가상면접 사례로 배우는 대규모 시스템 설계 기초(13) - 검색어 자동완성 시스템

Spring Boot 3, Hibernate JPA Debug : Encountered deprecated setting [javax.persistence.sharedCache.mode], use [jakarta.persistence.sharedCache.mode] instead